BBC Sky at Night Magazine on MSN

This is one hour of satellite trails over the world's darkest sky. Astronomers say nearly 2 million planned satellites could be 'devastating'

Study says existing proposals are going beyond the limit of what astronomy can withstand ...

It's disturbingly easy to trick AI into seeing aliens, say researchers

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.